Last week, the United States joined countries throughout the world in marking International Holocaust Remembrance Day. We paused to honor the memory of the six million Jews and millions of others who were murdered at the hands of the Nazis. As President Obama said, we recommitted ourselves to “keeping their memories alive not only in our thoughts, but through our actions.” This is a time to reflect on the meaning and lessons of “Never Forget, Never Again.”

This past year, we have seen Holocaust denial increasing throughout Europe, Asia, South America, and the Middle East. There has been an upsurge in anti-Semitic acts, including hateful graffiti, cemetery desecrations, verbal and physical assaults on Jews, incitement to anti-Semitic violence, and cartoons demonizing Jews.

Denying the truth of the Holocaust is an insult to history. We urge governments, civil society leaders, clerics, human rights groups, and all people of conscience in all nations to speak out against this kind of hatred. The United States will work with all of those who are committed to a world free of anti-Semitism and all other forms of ethnic or religious intolerance.